<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>css常见样式属性</title>
    <link rel="stylesheet" href="css_six.css">
</head>
<body class="bg_demo6">
    <p class="value_px">绝对单位:px</p>
    <p class="value_em">相对单位:em</p>
    <p class="value_rem">相对单位:rem</p>
    <p class="color_name">颜色值:名称</p>
    <p class="color_hex">颜色值:十六进制</p>
    <p class="color_fun">颜色值:函数rgb</p>
    <p class="img_url">图片url函数</p>
    <p class="font_demo">字体样式演示 函数 font style demo</p>
    <p class="text_demo">文本样式展示abc</p>
    <ul class="list_demo4">
        <li>项1</li>
        <li>项2</li>
        <li>项3</li>
    </ul>
    <div class="bg_box bg_demo1">
        背景样式颜色
    </div>
    
    <div class="bg_box bg_demo2">背景样式:图片</div>
    <div class="bg_box bg_demo3">背景样式:图片重复</div>
    <div class="bg_box bg_demo4">背景样式:图片位置</div>
    <table class="table_demo">
        <caption>
            学生信息表
        </caption>
        <thead>
            <tr>
                <th>学号</th>
                <th>姓名</th>
                <th>总分</th>
                <th>排名</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>20190206003</td>
                <td>王润川</td>
                <td>600</td>
                <td>2</td>
            </tr>
            <tr>
                <td>20190206001</td>
                <td>李二</td>
                <td>580</td>
                <td>3</td>
            </tr>
            <tr>
                <td>20190206002</td>
                <td>张三</td>
                <td>570</td>
                <td>4</td>
            </tr>
            <tr>
                <td>20190206004</td>
                <td>王润川</td>
                <td>550</td>
                <td>5</td>
            </tr>
        </tbody>
        <tfoot>
            <tr>
                <th colspan="4">人数总计：4人</th>
            </tr>
        </tfoot>
    </table>

    <div class="form_demo">
        <form action="">
            <!-- <fieldset> -->
                <!-- <legend>登录信息</legend> -->
                <p>
                    <!-- <label for="username">用户名</label> -->
                    <input type="text" name="username" id="username">
                </p>
                <p>
                    <!-- <label for="password">密码</label> -->
                    <input type="password" name="pwd" id="pwd">
                </p>
            <!-- </fieldset> -->
            <input type="submit" value="登录">
        </form>
    </div>
    <br><br><br><br><br><br><br>
</body>
</html>